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X-energy Commences First Irradiation Tests of Advanced TRISO-X Nuclear Fuel at Idaho National Laboratory

LCG, November 6, 2025--X-energy Reactor Company, LLC, (X-energy) and the U.S. Office of Nuclear Energy today announced the start of confirmatory irradiation testing at Idaho National Laboratory (INL) to qualify X-energy’s proprietary TRISO-X fuel pebbles for commercial use in the Xe-100 Small Modular Reactor (SMR). (TRISO stands for TRi-structural ISOtropic). This is the first time that TRISO-X fuel pebbles will undergo irradiation testing in a U.S. lab, which is a critical step in meeting requirements set forth by the U.S. Nuclear Regulatory Commission (NRC) for the commercial deployment of advanced reactors that will use the fuel.

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NextEra Energy and Google Collaborate on Accelerating Nuclear Power Deployment

LCG, October 28, 2025--NextEra Energy and Google yesterday announced two agreements that will help meet growing electricity demand from artificial intelligence (AI) with clean, reliable, 24/7 nuclear power and strengthen the nation's nuclear leadership. First, Google signed a new, 25-year agreement for power generated at the Duane Arnold Energy Center, Iowa's only nuclear power facility. The 601-MW boiling water reactor unit was shut down in 2020 and is expected to commence operations by the first quarter of 2029, pending regulatory approvals to restart the plant.

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Industry News

Diesel Problems Keep Seabrook Off-line

LCG, Dec. 15, 2000--The 1,150 megawatt Seabrook nuclear power plant in southeastern New Hampshire shut down October 21 to refuel and was expected back on-line by November 21, but continuing problems with a back-up diesel generator have prevented a restart and it appears they will continue to do so, a minority owner of the plant said yesterday.

Bay Corp Holdings Ltd., the parent company for Great Bay Power Corp. and Little Bay Power Corp., said that repairs to the diesel had been expected to be accomplished by the middle of this month, but haven't been. When mechanics tested one of the diesel generators recently, they broke it.

Seabrook is mostly owned by Northeast Utilities subsidiary Public Service Co. of New Hampshire and is operated by North Atlantic Energy Service Corp. North Atlantic is now projecting that the plant will be returned to service at the end of January.

Bay Corp got out a news release to explain the outage is costing it a lot of money for replacement power it must purchase at high rates to cover the 174 megawatts it isn't getting from Seabrook.

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